17887-11-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 17887-11-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,7,8,8 and 7 respectively; the second part has 2 digits, 1 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 17887-11:
(7*1)+(6*7)+(5*8)+(4*8)+(3*7)+(2*1)+(1*1)=145
145 % 10 = 5
So 17887-11-5 is a valid CAS Registry Number.